"Extremely good problems...covers a very wide portion of the puzzle spectrum."--"puzz.com." Physical exercise strengthens your body--and deciphering these puzzles helps train your brain and keep you "mentally fit." Improve your intellectual flexibility and ability to solve problems in all facets of life with 90 conundrums that include word and math puzzles, visual dilemmas, codes to crack, patterns and series to complete, analytical reasoning tests, probabilities, and more.
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"Extremely good problems...covers a very wide portion of the puzzle spectrum."--"puzz.com." Physical exercise strengthens your body--and deciphering these puzzles helps train your brain and keep you "mentally fit." Improve your intellectual flexibility and ability to solve problems in all facets of life with 90 conundrums that include word and math puzzles, visual dilemmas, codes to crack, patterns and series to complete, analytical reasoning tests, probabilities, and more.
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